Merge tag 'bsd-user-for-9.1-pull-request' of gitlab.com:bsdimp/qemu into staging

bsd-user: Misc changes for 9.1 (I hope)

V2: Add missing bsd-user/aarch64/target.h

This patch series includes two ma

Merge tag 'bsd-user-for-9.1-pull-request' of gitlab.com:bsdimp/qemu into staging

bsd-user: Misc changes for 9.1 (I hope)

V2: Add missing bsd-user/aarch64/target.h

This patch series includes two main sets of patches. To make it simple to
review, I've included the changes from my student which the later changes depend
on. I've included a change from Jessica and Doug as well. I've reviewed them,
but more eyes never hurt.

I've also included a number of 'touch up' patches needed either to get the
aarch64 building, or to implmement suggestions from prior review cycles. The
main one is what's charitably described as a kludge: force aarch64 to use 4k
pages. The qemu-project (and blitz branch) hasn't had the necessary changes to
bsd-user needed to support variable page size.

Sorry this is so late... Live has conspired to delay me.

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# gpg: Signature made Thu 25 Jul 2024 08:03:40 AM AEST
# gpg: using RSA key 2035F894B00AA3CF7CCDE1B76C1CD1287DB01100
# gpg: Good signature from "Warner Losh <wlosh@netflix.com>" [unknown]
# gpg: aka "Warner Losh <imp@bsdimp.com>" [unknown]
# gpg: aka "Warner Losh <imp@freebsd.org>" [unknown]
# gpg: aka "Warner Losh <imp@village.org>" [unknown]
# gpg: aka "Warner Losh <wlosh@bsdimp.com>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 2035 F894 B00A A3CF 7CCD E1B7 6C1C D128 7DB0 1100

* tag 'bsd-user-for-9.1-pull-request' of gitlab.com:bsdimp/qemu:
bsd-user: Add target.h for aarch64.
bsd-user: Add aarch64 build to tree
bsd-user: Make compile for non-linux user-mode stuff
bsd-user: Define TARGET_SIGSTACK_ALIGN and use it to round stack
bsd-user: Sync fork_start/fork_end with linux-user
bsd-user: Hard wire aarch64 to be 4k pages only
bsd-user: Simplify the implementation of execve
bsd-user:Add AArch64 improvements and signal handling functions
bsd-user:Add set_mcontext function for ARM AArch64
bsd-user:Add setup_sigframe_arch function for ARM AArch64
bsd-user:Add get_mcontext function for ARM AArch64
bsd-user:Add ARM AArch64 signal handling support
bsd-user:Add ARM AArch64 support and capabilities
bsd-user:Add AArch64 register handling and related functions
bsd-user:Add CPU initialization and management functions

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

show more ...

bsd-user: Define TARGET_SIGSTACK_ALIGN and use it to round stack

Most (all?) targets require stacks to be properly aligned. Rather than a
series of ifdefs in bsd-user/signal.h, instead use a mandito

bsd-user: Define TARGET_SIGSTACK_ALIGN and use it to round stack

Most (all?) targets require stacks to be properly aligned. Rather than a
series of ifdefs in bsd-user/signal.h, instead use a manditory #define
for all architectures.

Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

show more ...

Merge tag 'pull-misc-2022-05-11' of git://repo.or.cz/qemu/armbru into staging

Miscellaneous patches patches for 2022-05-11

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Merge tag 'pull-misc-2022-05-11' of git://repo.or.cz/qemu/armbru into staging

Miscellaneous patches patches for 2022-05-11

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# gpg: Signature made Wed 11 May 2022 07:58:10 AM PDT
# gpg: using RSA key 354BC8B3D7EB2A6B68674E5F3870B400EB918653
# gpg: issuer "armbru@redhat.com"
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>" [undefined]
# gpg: aka "Markus Armbruster <armbru@pond.sub.org>" [undefined]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867 4E5F 3870 B400 EB91 8653

* tag 'pull-misc-2022-05-11' of git://repo.or.cz/qemu/armbru:
Clean up decorations and whitespace around header guards
Normalize header guard symbol definition
Clean up ill-advised or unusual header guards
Clean up header guards that don't match their file name

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

show more ...

Clean up ill-advised or unusual header guards

Leading underscores are ill-advised because such identifiers are
reserved. Trailing underscores are merely ugly. Strip both.

Our header guards common

Clean up ill-advised or unusual header guards

Leading underscores are ill-advised because such identifiers are
reserved. Trailing underscores are merely ugly. Strip both.

Our header guards commonly end in _H. Normalize the exceptions.

Macros should be ALL_CAPS. Normalize the exception.

Done with scripts/clean-header-guards.pl.

include/hw/xen/interface/ and tools/virtiofsd/ left alone, because
these were imported from Xen and libfuse respectively.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20220506134911.2856099-3-armbru@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

show more ...

Merge tag 'bsd-user-arm-pull-request' of gitlab.com:bsdimp/qemu into staging

bsd-user: arm (32-bit) support

This series of patches brings in 32-bit arm support for bsd-user. It implements
all the

Merge tag 'bsd-user-arm-pull-request' of gitlab.com:bsdimp/qemu into staging

bsd-user: arm (32-bit) support

This series of patches brings in 32-bit arm support for bsd-user. It implements
all the bits needed to do image activation, signal handling, stack management
and threading. This allows us to get to the "Hello World" level. The arm and x86
code are now the same as in the bsd-user fork. For full context, the fork is at
https://github.com/qemu-bsd-user/qemu-bsd-user/tree/blitz (though the the recent
sig{bus,segv} needed updates are incomplete).

v5 changes:
o Moved to using the CPUArchState typedef and move
set_sigtramp_args, get_mcontext, set_mcontext, and
get_ucontext_sigreturn prototypes to
bsd-user/freebsd/target_os_ucontext.h
o Fix issues with arm's set_mcontext related to masking
and remove an unnecessary check.

We're down to only one hunk needing review:
bsd-user/arm/target_arch_signal.c: arm set_mcontext

Warnings that should be ignored:
o make checkpatch has a couple of complaints about the comments for the
signal trampoline, since it's a false positive IMHO.
WARNING: Block comments use a leading /* on a separate line
+ /* 8 */ sys_sigreturn,
WARNING: Block comments use a leading /* on a separate line
+ /* 9 */ sys_exit

# gpg: Signature made Fri 07 Jan 2022 11:36:37 PM PST
# gpg: using RSA key 2035F894B00AA3CF7CCDE1B76C1CD1287DB01100
# gpg: Good signature from "Warner Losh <wlosh@netflix.com>" [unknown]
# gpg: aka "Warner Losh <imp@bsdimp.com>" [unknown]
# gpg: aka "Warner Losh <imp@freebsd.org>" [unknown]
# gpg: aka "Warner Losh <imp@village.org>" [unknown]
# gpg: aka "Warner Losh <wlosh@bsdimp.com>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 2035 F894 B00A A3CF 7CCD E1B7 6C1C D128 7DB0 1100

* tag 'bsd-user-arm-pull-request' of gitlab.com:bsdimp/qemu: (37 commits)
bsd-user: add arm target build
bsd-user/freebsd/target_os_ucontext.h: Require TARGET_*CONTEXT_SIZE
bsd-user/arm/signal.c: arm get_ucontext_sigreturn
bsd-user/arm/signal.c: arm set_mcontext
bsd-user/arm/signal.c: arm get_mcontext
bsd-user/arm/signal.c: arm set_sigtramp_args
bsd-user/arm/target_arch_signal.h: Define size of *context_t
bsd-user/arm/target_arch_signal.h: arm machine context and trapframe for signals
bsd-user/arm/target_arch_signal.h: arm specific signal registers and stack
bsd-user/arm/target_arch_elf.h: arm get_hwcap2 impl
bsd-user/arm/target_arch_elf.h: arm get hwcap
bsd-user/arm/target_arch_elf.h: arm defines for ELF
bsd-user/arm/target_arch_thread.h: Routines to create and switch to a thread
bsd-user/arm/target_arch_sigtramp.h: Signal Trampoline for arm
bsd-user/arm/target_arch_vmparam.h: Parameters for arm address space
bsd-user/arm/target_arch_reg.h: Implement core dump register copying
bsd-user/arm/target_arch_cpu.h: Implement system call dispatch
bsd-user/arm/target_arch_cpu.h: Implement data abort exceptions
bsd-user/arm/target_arch_cpu.h: Implement trivial EXCP exceptions
bsd-user/arm/target_arch_cpu.h: Dummy target_cpu_loop implementation
...

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

show more ...

bsd-user/arm/target_arch_signal.h: Define size of *context_t

Define the native sizes of mcontext_t and ucontext_t so that the tests
in target_os_ucontext.h ensure the size of arm's version of these

bsd-user/arm/target_arch_signal.h: Define size of *context_t

Define the native sizes of mcontext_t and ucontext_t so that the tests
in target_os_ucontext.h ensure the size of arm's version of these
structures is correct.

Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

show more ...

bsd-user/arm/target_arch_signal.h: arm machine context and trapframe for signals

Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Kyle Evans <kevans@FreeBSD.org>
Signed-off-by: Warner Los

bsd-user/arm/target_arch_signal.h: arm machine context and trapframe for signals

Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Kyle Evans <kevans@FreeBSD.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

show more ...

bsd-user/arm/target_arch_signal.h: arm specific signal registers and stack

Defines for registers and stack layout related to signals.

Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: War

bsd-user/arm/target_arch_signal.h: arm specific signal registers and stack

Defines for registers and stack layout related to signals.

Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Kyle Evans <kevans@FreeBSD.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

show more ...